{"id":"CVE-2026-25784","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-25784","generatedAt":"2026-10-28T00:53:08.966Z","title":"Initialization of a Resource with an Insecure Default vulnerability in Hallo Welt!","description":"Initialization of a Resource with an Insecure Default vulnerability in Hallo Welt! GmbH BlueSpice (container image bluespice/wiki) allows privilege escalation. The default value of $mwsgTokenAuthenticatorServiceCIDR in the container's LocalSettings.php was intended to restrict internal service authentication to the container network, but evaluated to an empty string when the environment variable WIKI_SERVICE_TOKEN_AUTH_ALLOWED was not set. An empty value disables the IP restriction in the token authenticator component (mwstake/mediawiki-component-token-authenticator). As a result, any user with read access to the wiki (anonymous users on publicly readable wikis) could obtain an application token from the REST API and use it to get a session with sysop privileges as the internal service user.\n\nThis issue affects BlueSpice: from 5.2.3 before 5.2.7, and the 5.2.7 container images published before 2026-10-19 15:37 UTC.","published":"2026-10-23T09:17:07.000Z","lastModified":"2026-10-23T19:57:43.000Z","status":"Deferred","sourceIdentifier":"security@bluespice.com","cvss":{"version":"4.0","score":9.3,"severity":"CRITICAL","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-269","CWE-1188"],"affected":[],"epss":{"score":0.00345,"percentile":0.27879,"date":"2026-10-26","history":[{"date":"2026-10-23","score":0.00345,"percentile":0.26906}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.34%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-23T09:17:07.000Z","detail":{"score":"9.3","severity":"CRITICAL","publishedAt":"2026-10-23T09:17:06.943Z"},"summary":"New CVE, critical severity (CVSS 9.3)."}],"references":[{"url":"https://en.wiki.bluespice.com/wiki/Security:Security_Advisories/BSSA-2026-07","source":"security@bluespice.com"},{"url":"https://github.com/hallowelt/docker-bluespice-wiki/commit/04b840be565b508f6e741c376970909b69d2a444","source":"security@bluespice.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-25784","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}